Agroup of friends began talking about environmental issues. every time they
got together, they would talk and the group began to divide into sides, one
side saying that the environment was in danger, and the other side saying it
was not. as they continued to get together, each side began to take more and
more extreme positions. this is an example of:
a. group facilitation,
o
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b. minority influence.
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c. deindividuation
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d. group polarization

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?